Here is my take on testing a JSON object for having members of various kinds. You might think that a combination of regex and Javascript's equality operators would be a good way to go about this. But as the old joke goes,
Some people, when confronted with a problem, think "I know, I'll use regular expressions." Now they have two problems.
So rather than doing it myself, I opted to use well established BDD testing libraries to do the heavy lifting instead. I specified a custom reporter for Mocha so that it outputs only errors and a summary. If one were to comment this part out in index.js, you'd get a standard QA style output.
requires the mocha, chai, and should libraries.
Run the test suite like this:
$ node index.js
The testPolicies.js file contains an example of a moderately complex JSON object that might be tested.